Permitted list with conditionsBinding ruleASEANOriginal is EnglishOfficial-source import checked
Inorganic sulphites and hydrogensulphites (4) Sodium Sulfite (CAS No 7757-83-7), Ammonium bisulfite (CAS No. 10192-30-0) Ammonium sulfite (CAS No. 10196-04-0), Potassium sulfite (CAS No.10117-38-1 ), Potassium hydrogen sulfite (CAS No.7773-03- 07 ), Sodium sulfite (CAS No. 7631-90-5), sodium Metabisulfite (CAS No.7681-57-4) potassium Metabisulfite (CAS No.16731-55-8)
Inorganic sulphites and hydrogensulphites (4) Sodium Sulfite (CAS No 7757-83-7), Ammonium bisulfite (CAS No. 10192-30-0) Ammonium sulfite (CAS No. 10196-04-0), Potassium sulfite (CAS No.10117-38-1 ), Potassium hydrogen sulfite (CAS No.7773-03- 07 ), Sodiu
ASEAN Annex VI lists this record among preservatives allowed for cosmetic use. Member-state transition rules and deviations still require local verification.
Regulatory decision and full conditions
- Status
- Permitted list with conditions
- Legal role
- Binding rule
- Regulatory summary
- ASEAN Annex VI lists this record among preservatives allowed for cosmetic use. Member-state transition rules and deviations still require local verification.
- Conditions and restrictions
- 0.2% expressed as free SO 2
Substance identity
- Official source name
- Inorganic sulphites and hydrogensulphites (4) Sodium Sulfite (CAS No 7757-83-7), Ammonium bisulfite (CAS No. 10192-30-0) Ammonium sulfite (CAS No. 10196-04-0), Potassium sulfite (CAS No.10117-38-1 ), Potassium hydrogen sulfite (CAS No.7773-03- 07 ), Sodium sulfite (CAS No. 7631-90-5), sodium Metabisulfite (CAS No.7681-57-4) potassium Metabisulfite (CAS No.16731-55-8)
- CAS
- 7757-83-7; 10192-30-0; 10196-04-0; 10117-38-1; 7631-90-5; 7681-57-4; 16731-55-8
- EC
- 231-821-4
- Identity mapping
- cas_number
- Linked ingredient
- SODIUM SULFITE
Linked CosIng identity data
Names and aliases
SODIUM SULFITEnatrii sulfis
CosIng description: Sodium sulphite
EU inventory restriction note: III/99 V/9
Recorded cosmetic function: ANTIOXIDANT, HAIR WAVING OR STRAIGHTENING, PRESERVATIVE, REDUCING
Function pages:ANTIOXIDANT, HAIR WAVING OR STRAIGHTENING, PRESERVATIVE, REDUCING
View the complete ingredient profileCross-market snapshot for this identity
Exact linked records currently present in this site. An absent market means no imported exact match, not permission to use the substance.
European Union
Restricted entry found
2 linked records · 2 with specific conditions
Open supporting recordGreat Britain
Permitted list with conditions
1 linked record · 1 with specific conditions
Open supporting recordNew Zealand
Permitted list with conditions
7 linked records · 7 with specific conditions
Open supporting recordASEAN
Current recordPermitted list with conditions
1 linked record · 1 with specific conditions
Open supporting recordSouth Korea
Restricted
2 linked records · 2 with specific conditions
Open supporting recordCAS 10117-38-1PubChem CID 24958
Verified chemistry for CAS 10117-38-1
Potassium Sulfite
- IUPAC name
- dipotassium;sulfite
- Molecular formula
- K2O3S
- Molecular weight
- 158.26 g/mol
- Exact mass
- 157.88422800 Da
- Monoisotopic mass
- 157.88422800 Da
- Topological polar surface area
- 82.4 Ų
- Molecular complexity
- 18.0
- Formal charge
- 0
- Hydrogen-bond donors
- 0
- Hydrogen-bond acceptors
- 4
- Rotatable bonds
- 0
- Heavy atoms
- 6
- Covalent units
- 3
Names and synonyms reported to PubChem
Dipotassium sulfitePotassium sulphiteSulfurous acid, dipotassium saltPotassium sulfite (K2SO3)UNII-015KZC652ESulfurous acid, potassium saltHSDB 5052015KZC652E
16 more reported names
EINECS 233-321-1DIPOTASSIUM SULPHITEPOTASSIUM SULFITE [MI]INS NO.225POTASSIUM SULFITE [FCC]POTASSIUM SULFITE [HSDB]INS-225EC 233-321-1E-225RefChem:175607POTASSIUM SULFITE [INCI]PotassiumsulfiteSulfurous acid, potassium salt (1:2)Potassium sulfite(IV)KaliumsulfitE225
Open full PubChem recordSafety and hazards at PubChemPubChem annotationsChemical classifications3D structure image
External database identifiers
- EPA DTXSID:DTXSID80889532
Advanced structure statistics
- Defined atom stereocentres
- 0
- Undefined atom stereocentres
- 0
- Defined bond stereocentres
- 0
- Undefined bond stereocentres
- 0
- 3D conformers
- 0
Machine-readable structure identifiers
- SMILES
[O-]S(=O)[O-].[K+].[K+]- InChI
InChI=1S/2K.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2- InChIKey
BHZRJJOHZFYXTO-UHFFFAOYSA-L
Evidence from additional scientific databases
NIH PubChem PUG-View
Exact identifier match24958
Attributed physical-property, hazard, environmental and use annotations.
- Physical Description: Liquid Source: EPA Chemical Data Reporting (CDR)
- Physical Description: Dihydrate: White solid; Slowly oxidized by air to sulfate; [Merck Index] White powder; [MSDSonline] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Solubility: White crystals or crystalline powder; sol in about 3.5 parts water; decomposed by diluted acids with evolution of sulfur dioxide; pH about 8 /dihydrate/ Source: Hazardous Substances Data Bank (HSDB)
- Solubility: White-yellowish, hexagonal form; insol in ammonia; slightly sol in alcohol /dihydrate/ Source: Hazardous Substances Data Bank (HSDB)
- Note: This chemical does not meet GHS hazard criteria for 81.5% (242 of 297) of all reports. Source: European Chemicals Agency (ECHA)
- Signal: Warning Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: H315 (16.5%): Causes skin irritation [Warning Skin corrosion/irritation]; H319 (18.2%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H335 (16.2%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation] Source: European Chemicals Agency (ECHA)
- Precautionary Statement Codes: P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: Aggregated GHS information provided per 297 reports by companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Reported as not meeting GHS hazard criteria per 242 of 297 reports by companies.; There are 7 notifications provided by 55 of 297 reports by companies with hazard statement code(s).; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
- Signal: Danger Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- GHS Hazard Statements: H302: Harmful if swallowed [Warning Acute toxicity, oral]; H318: Causes serious eye damage [Danger Serious eye damage/eye irritation] Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Precautionary Statement Codes: P264, P264+P265, P270, P280, P301+P317, P305+P354+P338, P317, P330, and P501 (click each P-code to see the statement) Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Cosmetic Ingredient Review Finding(s): Safe in the present practices of use and concentration. Ingredient, concentration, and use information are available in documents discoverable at https://cir-reports.cir-safety.org Source: Cosmetic Ingredient Review (CIR)
- Consumer Uses: Etching agent; Soil amendments (fertilizers) Source: EPA Chemical Data Reporting (CDR)
- Industry Uses: Reducing agent; Soil amendments (fertilizers) Source: EPA Chemical Data Reporting (CDR)
- Cosmetic Ingredient Review Link: CIR ingredient: Potassium Sulfite Source: Cosmetic Ingredient Review (CIR)
- Sources/Uses: Used in photography, food and cosmetics (preservative and antioxidant), and drugs (cathartic and diuretic); [HSDB] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Industrial Processes with risk of exposure: Photographic Processing [Category: Other] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Uses: Photography; preservative and antioxidant in foods Source: Hazardous Substances Data Bank (HSDB)
- Uses: Medication: cathartic, diuretic Source: Hazardous Substances Data Bank (HSDB)
- Uses: COMPONENT OF PHOTOGRAPHIC DEVELOPERS; FOOD ADDITIVE (EG, PRESERVATIVE & ANTIOXIDANT); INGREDIENT IN COSMETICS (EG, HAIR PREPARATIONS) Source: Hazardous Substances Data Bank (HSDB)
Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record
Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.
Additional source coverage and match status
| Source | Result | Checked |
|---|---|---|
| EMBL-EBI ChEBI | No exact record | 2026-08-31 |
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
CAS 10192-30-0PubChem CID 10441651
Verified chemistry for CAS 10192-30-0
Ammonium Bisulfite
- IUPAC name
- azanium hydrogen sulfite
- Molecular formula
- H5NO3S
- Molecular weight
- 99.11 g/mol
- Exact mass
- 98.99901420 Da
- Monoisotopic mass
- 98.99901420 Da
- Topological polar surface area
- 80.6 Ų
- Molecular complexity
- 24.0
- Formal charge
- 0
- Hydrogen-bond donors
- 2
- Hydrogen-bond acceptors
- 4
- Rotatable bonds
- 0
- Heavy atoms
- 5
- Covalent units
- 2
Names and synonyms reported to PubChem
Ammonium hydrogen sulfiteAmmonium acid sulfiteAmmonium monosulfiteMonoammonium sulfiteAmmonium hydrosulfite8MW949D9GESulfurous acid, monoammonium saltAmmonium sulfite, hydrogen
16 more reported names
Ammonium bisulfite (NH4HSO3)RefChem:112138233-469-7azanium;hydrogen sulfiteAmmonium hydrogensulphiteAmmonium Bisulfite - In waterSulfurous acid, ammonium salt (1:1)Ammoniumbisulfitammonium bisulphiteammonium hydrogensulfiteUNII-8MW949D9GEHSDB 486AMMONIUM BISULFITE [MI]AMMONIUM BISULFITE [HSDB]Ammonium bisulfite - 45% In waterEINECS 233-469-7
Open full PubChem recordSafety and hazards at PubChemPubChem annotationsChemical classifications3D structure image
External database identifiers
- EPA DTXSID:DTXSID1050462
Advanced structure statistics
- Defined atom stereocentres
- 0
- Undefined atom stereocentres
- 0
- Defined bond stereocentres
- 0
- Undefined bond stereocentres
- 0
- 3D conformers
- 0
Machine-readable structure identifiers
- SMILES
[NH4+].OS(=O)[O-]- InChI
InChI=1S/H3N.H2O3S/c;1-4(2)3/h1H3;(H2,1,2,3)- InChIKey
ZETCGWYACBNPIH-UHFFFAOYSA-N
Evidence from additional scientific databases
NIH PubChem PUG-View
Exact identifier match10441651
Attributed physical-property, hazard, environmental and use annotations.
- Boiling Point: Sublimates at 302.0 °F (USCG, 1999) Source: CAMEO Chemicals
- Boiling Point: at 101.1kPa: 100 °C Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- Color/Form: Colorless crystals Source: Hazardous Substances Data Bank (HSDB)
- Color/Form: Colorless to yellow Source: Hazardous Substances Data Bank (HSDB)
- Density: 2.03 at 68 °F 1.40 (72% aqueous solution) (USCG, 1999) - Denser than water; will sink Source: CAMEO Chemicals
- Density: Sp gr: 2.03 Source: Hazardous Substances Data Bank (HSDB)
- Density: Relative density (water = 1): 2.0 Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- Melting Point: -10 °C Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- Physical Description: Ammonium bisulfite is colorless crystals which are soluble in water. It is noncombustible. It is corrosive to aluminum. It is a strong irritant to skin and mucous membranes. It is toxic by skin absorption. Source: CAMEO Chemicals
- Physical Description: Ammonium bisulfite is a solution of yellow crystals. It is a strong irritant to skin and mucous membranes. It is toxic by skin absorption. It may be corrosive to metals. Source: CAMEO Chemicals
- Physical Description: Liquid Source: EPA Chemical Data Reporting (CDR)
- Physical Description: Colorless to yellow solid; [ICSC] Sold only in solution; [Merck Index] Available as 44% and 68% solution; [MSDSonline] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Physical Description: COLOURLESS-TO-YELLOW LIQUID OR CRYSTALS WITH CHARACTERISTIC ODOUR. Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- Solubility: In water: 267 g/100 ml @ 10 °C, 620 G/100 ml @ 60 °C Source: Hazardous Substances Data Bank (HSDB)
- Solubility: In water: 71.8 g/100 ml @ 0 deg Source: Hazardous Substances Data Bank (HSDB)
- Solubility: Solubility in water, g/100ml at 10 °C: 267 (very good) Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- Exposure Routes: The substance can be absorbed into the body by ingestion. Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- First Aid: Call a physician.; EYES: Flush with water.; SKIN: Flush exposed area with water. (USCG, 1999) Source: CAMEO Chemicals
- First Aid: Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:; Refer to the "General First Aid" section. Specific First Aid: For corrosives, in case of contact, immediately flush skin or eyes with running water for at least 30 minutes. Additional flushing may be required. (ERG, 2024) Source: CAMEO Chemicals
- Note: This chemical does not meet GHS hazard criteria for 3.7% (6 of 162) of reports. Source: European Chemicals Agency (ECHA)
- Signal: Warning Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: H315 (38.3%): Causes skin irritation [Warning Skin corrosion/irritation]; H319 (94.4%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H335 (37.7%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation] Source: European Chemicals Agency (ECHA)
- Precautionary Statement Codes: P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: Aggregated GHS information provided per 162 reports by companies from 11 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Reported as not meeting GHS hazard criteria per 6 of 162 reports by companies.; There are 10 notifications provided by 156 of 162 reports by companies with hazard statement code(s).; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
- Signal: Danger Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- GHS Hazard Statements: H302: Harmful if swallowed [Warning Acute toxicity, oral]; H318: Causes serious eye damage [Danger Serious eye damage/eye irritation] Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Precautionary Statement Codes: P264, P264+P265, P270, P280, P301+P317, P305+P354+P338, P317, P330, and P501 (click each P-code to see the statement) Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Cosmetic Ingredient Review Finding(s): Safe in the present practices of use and concentration. Ingredient, concentration, and use information are available in documents discoverable at https://cir-reports.cir-safety.org Source: Cosmetic Ingredient Review (CIR)
- Consumer Uses: Reducing agent; Soil amendments (fertilizers); Processing aids not otherwise specified Source: EPA Chemical Data Reporting (CDR)
- Industry Uses: Soil amendments (fertilizers); Reducing agent; Other; Intermediate; Solids separation (precipitating) agent, not otherwise specified; Processing aids not otherwise specified Source: EPA Chemical Data Reporting (CDR)
- Cosmetic Ingredient Review Link: CIR ingredient: Ammonium Bisulfite Source: Cosmetic Ingredient Review (CIR)
- Sources/Uses: Used in preservatives, fertilizers, grain treatments, explosives, paper production, and corrosion control in drilling fluids; [HSDB] Also used in photography, food preservation, and the gold industry (cyanide destruction process); [MSDSonline] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Industrial Processes with risk of exposure: Pulp and Paper Processing [Category: Industry]; Using Disinfectants or Biocides [Category: Clean]; Photographic Processing [Category: Other] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Uses: SOURCE OF SULFUR IN FLUID FERTILIZERS. Source: Hazardous Substances Data Bank (HSDB)
- Uses: IN LIQ ANTIMICROBIAL TREATMENT FOR STORAGE GRAIN. Source: Hazardous Substances Data Bank (HSDB)
- Uses: Manufacture of industrial explosives & blasting agents. Source: Hazardous Substances Data Bank (HSDB)
- Uses: Used in sulfite pulping processes. Source: Hazardous Substances Data Bank (HSDB)
- Uses: For more Uses (Complete) data for AMMONIUM BISULFITE (6 total), please visit the HSDB record page. Source: Hazardous Substances Data Bank (HSDB)
Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record
Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.
Additional source coverage and match status
| Source | Result | Checked |
|---|---|---|
| EMBL-EBI ChEBI | No exact record | 2026-08-31 |
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
CAS 10196-04-0PubChem CID 25041
Verified chemistry for CAS 10196-04-0
Ammonium Sulfite
- IUPAC name
- diazanium;sulfite
- Molecular formula
- H8N2O3S
- Molecular weight
- 116.14 g/mol
- Exact mass
- 116.02556330 Da
- Monoisotopic mass
- 116.02556330 Da
- Topological polar surface area
- 84.4 Ų
- Molecular complexity
- 18.0
- Formal charge
- 0
- Hydrogen-bond donors
- 2
- Hydrogen-bond acceptors
- 4
- Rotatable bonds
- 0
- Heavy atoms
- 6
- Covalent units
- 3
Names and synonyms reported to PubChem
Diammonium sulfiteAmmonium sulphiteDiammonium sulfonate8LF589Y5GDSulfurous acid, diammonium saltSulfurous acid, ammonium saltRefChem:112210233-484-9
13 more reported names
ammoniumsulfiteAmmoniumsulfitdiazanium;suliteAmmonium sulfonateUNII-8LF589Y5GDAMMONIUM SULFITE [MI]AMMONIUM SULFITE [HSDB]HSDB 1426CHEBI:186946EINECS 233-484-9Sulfurous acid ammonium salt (1:2)Sulfurous acid, ammonium salt (1:2)EC 233-484-9
Open full PubChem recordSafety and hazards at PubChemPubChem annotationsChemical classifications3D structure image
External database identifiers
- ChEBI:CHEBI:186946
- EPA DTXSID:DTXSID2064991
Advanced structure statistics
- Defined atom stereocentres
- 0
- Undefined atom stereocentres
- 0
- Defined bond stereocentres
- 0
- Undefined bond stereocentres
- 0
- 3D conformers
- 0
Machine-readable structure identifiers
- SMILES
[NH4+].[NH4+].[O-]S(=O)[O-]- InChI
InChI=1S/2H3N.H2O3S/c;;1-4(2)3/h2*1H3;(H2,1,2,3)- InChIKey
PQUCIEFHOVEZAU-UHFFFAOYSA-N
Evidence from additional scientific databases
EMBL-EBI ChEBI
Exact identifier matchCHEBI:186946
Diammonium sulfite
- Formula
- 2H4N.O3S
- Average mass
- 116.142 g/mol
- Monoisotopic mass
- 116.02556 Da
- Formal charge
- 0
- p-block molecular entity — is a (CHEBI:33675)
- sulfite salt — is a (CHEBI:48857)
- p-block molecular entity — is a (CHEBI:33675)
- sulfite salt — is a (CHEBI:48857)
Additional curated names
diazanium;sulite
Cross-references from this source
- CAS: 10196-04-0 — ChemIDplus
- MANUAL_X_REF: 23404 — ChemSpider
Mapped by: Exact CAS cross-reference in the ChEBI compound record. Retrieved: 2026-08-31. Open source record
NIH PubChem PUG-View
Exact identifier match25041
Attributed physical-property, hazard, environmental and use annotations.
- Color/Form: White, solid Source: Hazardous Substances Data Bank (HSDB)
- Density: greater than 1.1 at 68 °F (USCG, 1999) Source: CAMEO Chemicals
- Density: 1.41 @25 °C Source: PAC Chemical Database, U.S. Department of Energy
- Odor: Odorless Source: Hazardous Substances Data Bank (HSDB)
- Physical Description: Ammonium sulfite is a colorless crystalline solid. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. It is used in the manufacture of other chemicals, in medicine, and photography. Source: CAMEO Chemicals
- Physical Description: Large Crystals; Dry Powder; Liquid Source: EPA Chemical Data Reporting (CDR)
- Physical Description: White odorless solid; [HSDB] White odorless crystalline solid; [MSDSonline] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Solubility: Soluble in water, almost insoluble in alcohol, acetone. Source: Hazardous Substances Data Bank (HSDB)
- pH: Its aq soln is alkaline to litmus. /ammonium sulfate monohydrate/ Source: Hazardous Substances Data Bank (HSDB)
- First Aid: INHALATION: move to fresh air.; INGESTION: give large amount of water; get medical attention.; EYES: flush with water for 15 min.; SKIN: flush with water. (USCG, 1999) Source: CAMEO Chemicals
- Note: This chemical does not meet GHS hazard criteria for 71.1% (133 of 187) of all reports. Source: European Chemicals Agency (ECHA)
- Signal: Danger Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: H314 (13.4%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]; H315 (15%): Causes skin irritation [Warning Skin corrosion/irritation]; H319 (15.5%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H335 (10.2%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation] Source: European Chemicals Agency (ECHA)
- Precautionary Statement Codes: P260, P261, P264, P264+P265, P271, P280, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P351+P338, P305+P354+P338, P316, P319, P321, P332+P317, P337+P317, P362+P364, P363, P403+P233, P405, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: Aggregated GHS information provided per 187 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Reported as not meeting GHS hazard criteria per 133 of 187 reports by companies.; There are 5 notifications provided by 54 of 187 reports by companies with hazard statement code(s).; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
- Signal: Danger Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- GHS Hazard Statements: H302: Harmful if swallowed [Warning Acute toxicity, oral]; H318: Causes serious eye damage [Danger Serious eye damage/eye irritation] Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Precautionary Statement Codes: P264, P264+P265, P270, P280, P301+P317, P305+P354+P338, P317, P330, and P501 (click each P-code to see the statement) Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Cosmetic Ingredient Review Finding(s): Safe in the present practices of use and concentration. Ingredient, concentration, and use information are available in documents discoverable at https://cir-reports.cir-safety.org Source: Cosmetic Ingredient Review (CIR)
- Consumer Uses: Soil amendments (fertilizers); Reducing agent; Processing aids not otherwise specified Source: EPA Chemical Data Reporting (CDR)
- Industry Uses: Intermediate; Soil amendments (fertilizers); Reducing agent; Preservative; Processing aids not otherwise specified Source: EPA Chemical Data Reporting (CDR)
- Cosmetic Ingredient Review Link: CIR ingredient: Ammonium Sulfite Source: Cosmetic Ingredient Review (CIR)
- Sources/Uses: Used in photography and in the production of caramel, refractory bricks, lubricants, medicines, permanent wave solutions, ammonium thiosulfite, and ammonium chloride; [HSDB] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Industrial Processes with risk of exposure: Photographic Processing [Category: Other]; Dressing Hair [Category: Other] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Uses: IN PRODN OF CARAMEL. Source: Hazardous Substances Data Bank (HSDB)
- Uses: In photography; as reducing agent; in bricks for blast furnace linings; in lubricants for metal cold-working. Source: Hazardous Substances Data Bank (HSDB)
- Uses: ... Medicine, permanent wave solns. /Ammonium sulfite monohydrate/ Source: Hazardous Substances Data Bank (HSDB)
- Uses: Used in production of ammonium thiosulfite. Source: Hazardous Substances Data Bank (HSDB)
- Uses: For more Uses (Complete) data for AMMONIUM SULFITE (6 total), please visit the HSDB record page. Source: Hazardous Substances Data Bank (HSDB)
Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record
Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.
Additional source coverage and match status
| Source | Result | Checked |
|---|---|---|
| EMBL-EBI ChEBI | Exact match | 2026-08-31 |
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
CAS 16731-55-8PubChem CID 28019
Verified chemistry for CAS 16731-55-8
Potassium Metabisulfite
- Molecular formula
- K2O5S2
- Molecular weight
- 222.33 g/mol
- Exact mass
- 221.8461284 Da
- Monoisotopic mass
- 221.8461284 Da
- Topological polar surface area
- 125.0 Ų
- Molecular complexity
- 136.0
- Formal charge
- 0
- Hydrogen-bond donors
- 0
- Hydrogen-bond acceptors
- 6
- Rotatable bonds
- 0
- Heavy atoms
- 9
- Covalent units
- 3
Names and synonyms reported to PubChem
Potassium disulfiteDipotassium pyrosulfiteDipotassium disulfiteSobisuDipotassium metabisulfitepotassium metabisulphitePotassium disulfite (K2S2O5)Potassium pentaoxodisulfate
16 more reported names
Pyrosulfurous acid, dipotassium saltIns-224Potassium metabisulfite (e 224)65OE787Q7WE-224RefChem:867887240-795-3Potassium pyrosulfitePotassium metabisulfite [NF]Potassium metabisulfite (NF)Dipotassium disulphiteCCRIS 1427HSDB 5062EINECS 240-795-3KaliumpyrosulfitUNII-65OE787Q7W
Open full PubChem recordSafety and hazards at PubChemPubChem annotationsChemical classifications3D structure image
External database identifiers
- ChEMBL:CHEMBL2106901
- EPA DTXSID:DTXSID1021293
Advanced structure statistics
- Defined atom stereocentres
- 0
- Undefined atom stereocentres
- 0
- Defined bond stereocentres
- 0
- Undefined bond stereocentres
- 0
- 3D conformers
- 0
Machine-readable structure identifiers
- SMILES
[O-]S(=O)S(=O)(=O)[O-].[K+].[K+]- InChI
InChI=1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2- InChIKey
RWPGFSMJFRPDDP-UHFFFAOYSA-L
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
CAS 7631-90-5PubChem CID 23665763
Verified chemistry for CAS 7631-90-5
Sodium Bisulfite
Sodium hydrogensulfite is an inorganic sodium salt having hydrogensulfite as the counterion. It has a role as a mutagen, an allergen, a reducing agent, a food antioxidant and a food colour retention agent. It is an inorganic sodium salt and a sulfite salt. It contains a hydrogensulfite. — ChEBI
- IUPAC name
- sodium hydrogen sulfite
- Molecular formula
- HNaO3S
- Molecular weight
- 104.06 g/mol
- Exact mass
- 103.95440935 Da
- Monoisotopic mass
- 103.95440935 Da
- Topological polar surface area
- 79.6 Ų
- Molecular complexity
- 33.0
- Formal charge
- 0
- Hydrogen-bond donors
- 1
- Hydrogen-bond acceptors
- 4
- Rotatable bonds
- 0
- Heavy atoms
- 5
- Covalent units
- 2
Names and synonyms reported to PubChem
sodium hydrogensulfiteSodium bisulphiteMonosodium sulfiteSulfurous acid, monosodium saltSodium sulhydrateUantax SBSHydrogen sodium sulfiteHydrogen sulfite sodium
16 more reported names
Monosodic sulphiteSodium hydrosulfite(DOT)Bisulfite de sodiumSodium bisulfite (1:1)Sodium sulfite (NaHSO3)Sodium bisulfite (NaHSO3)Fr-62Sulfurous acid, sodium salt (1:1)INS NO.222TZX5469Z6ICHEBI:26709INS-222NSC-60680E-222Sodium acid bisulfiteMonosodium salt of sulfurous acid
Open full PubChem recordSafety and hazards at PubChemPubChem annotationsChemical classifications3D structure image
External database identifiers
- ChEBI:CHEBI:26709
- ChEMBL:CHEMBL1689285
- EPA DTXSID:DTXSID8034902
- PubMed:26980303
- PubMed:25086357
- PubMed:23220588
- PubMed:21873648
- PubMed:12519749
- PubMed:7578186
- PubMed:6703372
- PubMed:1484721
- PubMed:1482805
Advanced structure statistics
- Defined atom stereocentres
- 0
- Undefined atom stereocentres
- 0
- Defined bond stereocentres
- 0
- Undefined bond stereocentres
- 0
- 3D conformers
- 0
Machine-readable structure identifiers
- SMILES
OS(=O)[O-].[Na+]- InChI
InChI=1S/Na.H2O3S/c;1-4(2)3/h;(H2,1,2,3)/q+1;/p-1- InChIKey
DWAQJAXMDSEUJJ-UHFFFAOYSA-M
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
CAS 7681-57-4PubChem CID 656671
Verified chemistry for CAS 7681-57-4
Sodium Pyrosulfite
- Molecular formula
- Na2O5S2
- Molecular weight
- 190.11 g/mol
- Exact mass
- 189.89825401 Da
- Monoisotopic mass
- 189.89825401 Da
- Topological polar surface area
- 125.0 Ų
- Molecular complexity
- 136.0
- Formal charge
- 0
- Hydrogen-bond donors
- 0
- Hydrogen-bond acceptors
- 6
- Rotatable bonds
- 0
- Heavy atoms
- 9
- Covalent units
- 3
Names and synonyms reported to PubChem
Sodium metabisulfiteSodium disulfiteDisodium pyrosulfiteNatrii disulfisCampden TabletsDisodium metabisulfiteNatrium pyrosulfitNatriummetabisulfit
16 more reported names
sodium pyrosulphiteSodium bisulfite anhydrousNatrium metabisulfurosumSodium pyrosulfite (Na2S2O5)Disodium pentaoxodisulfate4VON5FNS3CINS NO.223Sodium metabisulfite (e 223)INS-223NSC-158277NSC-227243DISODIUM PYROSULPHITEE-223CHEBI:114786Na(2)S(2)O(5)RefChem:6239
Open full PubChem recordSafety and hazards at PubChemPubChem annotationsChemical classifications3D structure image
External database identifiers
- ChEBI:CHEBI:114786
- ChEMBL:CHEMBL2016976
- EPA DTXSID:DTXSID0029684
- PubMed:40706911
- PubMed:35067933
- PubMed:33957602
- PubMed:33817499
- PubMed:29188487
- PubMed:26795242
- PubMed:26015265
- PubMed:25486021
- PubMed:25463229
- PubMed:14763933
Advanced structure statistics
- Defined atom stereocentres
- 0
- Undefined atom stereocentres
- 0
- Defined bond stereocentres
- 0
- Undefined bond stereocentres
- 0
- 3D conformers
- 0
Machine-readable structure identifiers
- SMILES
[O-]S(=O)S(=O)(=O)[O-].[Na+].[Na+]- InChI
InChI=1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2- InChIKey
HRZFUMHJMZEROT-UHFFFAOYSA-L
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
CAS 7757-83-7PubChem CID 24437
Verified chemistry for CAS 7757-83-7
Sodium Sulfite
- IUPAC name
- disodium;sulfite
- Molecular formula
- Na2O3S
- Molecular weight
- 126.05 g/mol
- Exact mass
- 125.93635360 Da
- Monoisotopic mass
- 125.93635360 Da
- Topological polar surface area
- 82.4 Ų
- Molecular complexity
- 18.0
- Formal charge
- 0
- Hydrogen-bond donors
- 0
- Hydrogen-bond acceptors
- 4
- Rotatable bonds
- 0
- Heavy atoms
- 6
- Covalent units
- 3
Names and synonyms reported to PubChem
Disodium sulfiteSodium sulfite anhydrousSodium sulphiteSulfurous acid, disodium saltNatrium sulfurosumSulftechNatriumsulfidNatriumsulfit
16 more reported names
S-WATNatrii sulphisAnhydrous sodium sulfiteSodium sulfite (Na2SO3)Exsiccated sodium sulfiteNatrum sulphurosumSodium sulphite anhydrousSulfurous acid, sodium salt (1:2)Sodium sulfite, anhydrousSodium sulfite, exsiccatedDried sodium sulfiteDisodium sulfite (Na2SO3)Anhydrous sodium sulphiteSodium sulfite (2:1)VTK01UQK3GINS NO.221
Open full PubChem recordSafety and hazards at PubChemPubChem annotationsChemical classifications3D structure image
External database identifiers
- ChEBI:CHEBI:86477
- ChEMBL:CHEMBL1945334
- EPA DTXSID:DTXSID2044260
- PubMed:23973939
- PubMed:21873648
- PubMed:20348042
Advanced structure statistics
- Defined atom stereocentres
- 0
- Undefined atom stereocentres
- 0
- Defined bond stereocentres
- 0
- Undefined bond stereocentres
- 0
- 3D conformers
- 0
Machine-readable structure identifiers
- SMILES
[O-]S(=O)[O-].[Na+].[Na+]- InChI
InChI=1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2- InChIKey
GEHJYWRUCIMESM-UHFFFAOYSA-L
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Official source and provenance
- Registered source
- ASEAN Cosmetic Directive annexes
- Source reference
- ASEAN Annex VI, reference 9
- Source record ID
VI-9- Source version
- 2026-1
- Source language
- English
- Translation status
- Original is English
- Source updated
- 2026-06-22
- Snapshot checked
- 2026-08-30 04:44 UTC
- Validation method
- pdfplumber ruled-table extraction with per-annex reviewed counts
- SHA-256
ffad59f6c01a92c82042c54203ee14969425c2a82bd04c2f4012ff82513e69f1
Registered dataset notes
- Dataset coverage
- Banned, restricted and positive-list substances under the harmonised ASEAN framework
- Authority note
- Regional directive; member-state transitions and deviations still require local verification
How this record fits the market dataset
2224
current ASEAN records
247
records marked Permitted list with conditions
2224
records from this source version
1930
market records with CAS identity
Status distribution
Condition text is present on 462 of 2224 current records. An empty condition field is interpreted according to the record type above; it is never converted into an unrestricted-use claim.
ASEAN market context
Complete regional annex dataset
Coverage version: ASEAN Cosmetic Directive annexes 2026-1, 22 June 2026
Annexes II, III, IV, VI and VII covering prohibited, restricted and positive-list substances.
Verification checklist
- Search all ACD annexes by name and identifiers.
- Apply product type, maximum level and warning conditions.
- Confirm the target member state's adoption and transition date.
- Complete the local notification and responsible-company requirements.
Official market sources
- ASEAN Cosmetic Directive annexesRegional directive; member-state transitions and deviations still require local verification
Verification workflow and record completeness
Before using this result in a compliance decision
- Confirm that “Inorganic sulphites and hydrogensulphites (4) Sodium Sulfite (CAS No 7757-83-7), Ammonium bisulfite (CAS No. 10192-30-0) Ammonium sulfite (CAS No. 10196-04-0), Potassium sulfite (CAS No.10117-38-1 ), Potassium hydrogen sulfite (CAS No.7773-03- 07 ), Sodium sulfite (CAS No. 7631-90-5), sodium Metabisulfite (CAS No.7681-57-4) potassium Metabisulfite (CAS No.16731-55-8)” and every CAS/EC identifier refer to the material in your supplier specification.
- Search all ACD annexes by name and identifiers.
- Apply product type, maximum level and warning conditions.
- Confirm the target member state's adoption and transition date.
- Complete the local notification and responsible-company requirements.
- Document the source version and recheck the regulator before manufacture, notification or market placement.
Fields available in this record
- Official substance nameAvailable
- CASAvailable
- ECAvailable
- Separate condition textAvailable
- Effective dateNot supplied
- Snapshot hash and methodAvailable
Questions this page answers
This identity appears on a market positive list for the list function represented by the source record. Confirm that the intended function and product use fall within the list scope and every stated condition.
Positive-list presence is purpose-specific and is not blanket approval for every cosmetic use. Regional annex coverage does not replace member-state implementation dates, notifications or national deviations.
The record cites ASEAN Annex VI, reference 9, source version 2026-1. Open the official source.
No. CAS helps resolve identity, but jurisdictions can classify the same substance differently and can apply different product scopes, limits, warnings and transition dates.
Stable citation
Inorganic sulphites and hydrogensulphites (4) Sodium Sulfite (CAS No 7757-83-7), Ammonium bisulfite (CAS No. 10192-30-0) Ammonium sulfite (CAS No. 10196-04-0), Potassium sulfite (CAS No.10117-38-1 ), Potassium hydrogen sulfite (CAS No.7773-03- 07 ), Sodium sulfite (CAS No. 7631-90-5), sodium Metabisulfite (CAS No.7681-57-4) potassium Metabisulfite (CAS No.16731-55-8). ASEAN Annex VI, reference 9. ASEAN. Source version 2026-1. CosIng Checker regulatory record: https://cosingchecker.com/regulations/asean/records/4267/
Cite the regulator as the legal authority. This page is a structured evidence index and verification aid, not a substitute for the official text or professional legal assessment.
Interpretation and limits for ASEAN
This identity appears on a market positive list for the list function represented by the source record.
Confirm that the intended function and product use fall within the list scope and every stated condition.
How to interpret the legal role
The cited row forms part of a binding rule or legally incorporated list for this market.
Evidence on this page
- Recorded outcome: Permitted list with conditions
- Legal role: Binding rule
- Source version: 2026-1
What it does not prove
Regional annex coverage does not replace member-state implementation dates, notifications or national deviations.
Further authoritative substance research
These sources can add identity, safety, exposure or hazard context. A link is not evidence that the database contains this exact substance, and none of these sources overrides the market decision above.
Cosmetic Ingredient Review safety assessments
Expert Panel conclusions, assessed ingredient groups, use conditions, dates and report documents
Independent expert review considered by FDA; not a government approval or binding market rule
Research this identity at the sourceFDA Global Substance Registration System
UNII identifiers, preferred names, substance types, codes and public substance relationships
Identity registry only; UNII availability does not imply FDA review or approval
Research this identity at the sourceILO/WHO International Chemical Safety Cards
Hazards, symptoms, first aid, storage, incompatibilities and physical properties for covered chemicals
International occupational chemical-safety reference; not cosmetic-use approval
Research this identity at the sourceJapan NITE-CHRIP
Chemical identity, Japanese and foreign legal lists, GHS hazards and exposure-related information
Chemical-management evidence; cosmetic status remains governed by the applicable MHLW standard and market rules
Research this identity at the sourceNIOSH Pocket Guide to Chemical Hazards
REL, PEL, IDLH, properties, exposure routes, symptoms, target organs, first aid and measurement methods for covered workplace chemicals
US occupational-health guidance and limits; not a cosmetic ingredient decision
Research this identity at the sourceOECD eChemPortal
Gateway to authority-owned physical-property, fate, ecotoxicity, toxicity, exposure and GHS records
Discovery gateway; each linked authority remains responsible for its data
Research this identity at the sourceUS EPA CompTox CTX APIs
API key required for importDTXSID identity, experimental and predicted properties, toxicity, bioactivity, exposure and environmental data
Scientific and computational evidence; predictions must remain labelled and do not determine cosmetic legality
Research this identity at the source